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Customer reviews for Duracell AGM Deep Cycle Marine and RV Battery , Group Size 31 for
Duracell AGM Deep Cycle Marine and RV Battery , Group Size 31
4 out of 5 stars
stars
87 ratings70 reviews
  1. 5 stars63% (55)
  2. 4 stars9% (8)
  3. 3 stars5% (4)
  4. 2 stars7% (6)
  5. 1 star16% (14)

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Showing 1-10 of 70 reviews
Nov 5, 2025
Reviewer name: Opsmp
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great RV House Battery

Great for our RV house battery.

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Oct 3, 2019
Reviewer name: Renzo
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Gel deep cycle batteries at great price

I replaced the Deka brand AGMs in my GEM cart with these Duracells. So far/so good. Dekas are over $200 more(each)The weight of these seems to be comparable to the Dekas. Heavier means better when it comes to batteries .

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May 5, 2026
Reviewer name: firecop
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Can get 3 days without recharge

Great batteries for trolling motor

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Aug 13, 2017
Reviewer name: Mikessp
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Second set. Use as house batteries in a large RV.

First set lasted 5.5 years and were heavily used (300+ days per year) in an RV we use in business. Great batteries, well made, last long.

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Sep 18, 2017
Reviewer name: BobbyBoy
5 out of 5 stars
5 out of 5 stars review

Great batteries thus far

I have two of these in my boat running an 80lb 24v trolling motor. I've used them since early in the year. We fish Lake Taneycomo (the tailwaters of Tablerock dam). Several 6 hr trips I've had to fight current with the trolling motor running constantly and averaging maybe 40% of full power. This has nowhere near drained these batteries. They recharge very quickly with my onboard charger. I'm very pleased with them and expect them to last several years.

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Jun 24, 2019
Reviewer name: Peter and Rita
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Highly rated

We checked online ratings for rv batteries and decided on this for our travel trailer. It worked perfectly on our three week trip off the grid most days. Delivery to our local Sam’s club was fast and was ready for pickup as soon as we received the text message.

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Jun 19, 2013
Reviewer name: LewisE
5 out of 5 stars
5 out of 5 stars review

Biggest, Heaviest, Highest-Capacity That Fits

My 2011 Itasca Sunova Model 33C motorhome needed new coach batteries. Based upon recommendations from other RV owners I bought two of these batteries. They were the biggest, heaviest, highest-capacity, deep-cycle batteries that would fit in my motorhome's battery compartment. They're connected in parallel. With a full charge, they'll power my coach, its lights and my 1,000-watt inverter for much longer than the two smaller batteries that were installed at the factory. The sealed design eliminates spills and having to maintain fluid levels.

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Feb 10, 2025
Reviewer name: THS SPORTING CENTER
5 out of 5 stars
5 out of 5 stars review

Use Large Amp Charger or else

I have several Duracell AGM group 31 , 27 and 24 . They work very well even 7 years later. Use a high amp Smart Charger and don't drain the battery dead . I have had some of these last me 10 years. All that being said converting to PO4 Lithium is much better in the long run.

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Sep 29, 2024
Reviewer name: TOP TIER MECHANIC
5 out of 5 stars
5 out of 5 stars review

GREAT AGM BATTERY

PLEASE READ THE TOP LABEL ON THESE BATTERIES. IF YOU WANT ANY AGM BATTERY TO LAST YOU NEED TO "CHARGE AND EQUALIZE" THEM A FEW TIMES A YEAR IF THEY'RE NOT PERMANENTLY CONNECTED TO AN AGM CHARGER. YOU CAN'T USE ANY OLD CHARGER. IT NEEDS TO BE AN AGM CHARGER BECAUSE ALL AGM BATTERIES, EVEN THE EXPENSIVE ONES (Optima), ARE PICKY ABOUT HOW THEY'RE CHARGED. THEY NEED TO BE CHARGED BETWEEN 13.8 VOLTS and 14.6 VOLTS. IF YOU DO THIS, THEY WILL LAST YOU MANY YEARS, SO PLEASE BUY AN AGM CHARGER IF YOU BUY AN AGM BATTERY. I LOVE THESE BATTERIES. I'm pretty sure all the people complaining don't charge and equalize their batteries eventhough it says to do so right on the top label. I love these AGM batteries. I use them to power a backup sump pumps in my basement. I use to use the regular flooded lead acid batteries but I got sick of checking the electrolyte and refilling if necessary every 6 months. I decided to give these a try and I'm so glad I did. They work great after years of use. There's no need to check electrolyte. That's a time saver in itself.

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Aug 17, 2018
Reviewer name: Greenjump
3 out of 5 stars
3 out of 5 stars review

Verified Purchase

Not an RV battery

I bought this for a 2 week dry camping trip in the Smokies to replace a smaller size 27 Harris wet battery. Performance was generally disappointing in my 27’ RV under light loads of periodic use for 1-2 LED fixtures, water pump, and appliances that require a little DC to start the propane gas up (Fridge, Water heater). I would kill the generator at 8pm and fully charged, are above usage started until maybe 11pm. I turned off everything before bed. By morning my battery monitor was frequently reporting 40-50% remaining. This is not a true RV deep cycle battery. It’s a hybrid with both cranking and cycling design. I believe a pure deep cycle battery is a better way to go. This one will save you some money if you want an AGM to replace an older, smaller wet battery.

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